week01

 

 week01

#step01

 開啟processing應用程式，設定字的大小及視窗大小。

//This is very big

//中文字

size(500,500);//視窗大小(寬,高);

背景改顏色:

background(255,255,0);//黃色

背景(紅,綠,藍);

#step02

用鼠標畫圖

void setup(){

  size(500,500);

  background(255,255,0);

}

void draw(){

  ellipse(mouseX,mouseY,8,8);

}

精緻化

void setup(){

  size(500,500);

  background(255);

}

void draw(){

  if(mousePressed) {

    line(mouseX,mouseY,pmouseX,pmouseY);

  }

}

#step03

畫筆可變顏色

void setup(){

  size(500,500);

  background(255);

}

void draw(){

  if(mousePressed) {

    line(mouseX,mouseY,pmouseX,pmouseY);

  }

}

void keyPressed(){

  if(key=='1')stroke(255,0,0);

  if(key=='2')stroke(0,255,0);

  if(key=='3')stroke(0,0,255);

}

將自己畫的圖匯出

void setup(){

  size(500,500);

  background(255);

}

void draw(){

  if(mousePressed) {

    line(mouseX,mouseY,pmouseX,pmouseY);

  }

}

void keyPressed(){

  if(key=='1')stroke(255,0,0);

  if(key=='2')stroke(0,255,0);

  if(key=='3')stroke(0,0,255);

  if(key=='s'||key=='S') save("output.png");

}

#step04 

改變粗細

void setup(){

  size(500,500);

  background(255);

}

void draw(){

  if(mousePressed) {

    line(mouseX,mouseY,pmouseX,pmouseY);

  }

}

void keyPressed(){

  if(key=='1')stroke(255,0,0);

  if(key=='2')stroke(0,255,0);

  if(key=='3')stroke(0,0,255);

  if(key=='s'||key=='S') save("output.png");

  if(key=='+')strokeWeight(10);

  if(key=='-')strokeWeight(1);

}

粗細漸變

void setup(){

  size(500,500);

  background(255);

}

void draw(){

  if(mousePressed) {

    line(mouseX,mouseY,pmouseX,pmouseY);

  }

}

int w=1;

void keyPressed(){

  if(key=='1')stroke(255,0,0);

  if(key=='2')stroke(0,255,0);

  if(key=='3')stroke(0,0,255);

  if(key=='s'||key=='S') save("output.png");

  if(key=='+')strokeWeight(++w);

  if(key=='-')strokeWeight(--w);

  println(w);

}